Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2938da638c027f2…

MALICIOUS

PDF

44.9 KB Created: 2020-08-18 14:08:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c790823f38596965edd86054d1f30a4 SHA-1: b7ab23cb5d6bd3df6099c230d632747521de5439 SHA-256: d2938da638c027f27f6877725f436040d624fdcf1512d9d9930a35360ff0506c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a mass of external links, many of which point to a redirector service. The primary malicious link, https://ttraff.cc/pify?keyword=uc+browser+app++for+simple+mobile, is designed to lure users into downloading a fake application. This indicates a phishing or social engineering attack aimed at redirecting users to potentially harmful content.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=uc+browser+app++for+simple+mobile
    • http://files.janetmansfield.com/uploads/1/3/2/6/132682966/7310164.pdf
    • https://cdn.shopify.com/s/files/1/0428/2934/9030/files/artistry_ideal_radiance_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0435/4929/4756/files/m41_bus_timetable.pdf
    • https://cdn.shopify.com/s/files/1/0431/0256/8599/files/30453518995.pdf
    • https://cdn.shopify.com/s/files/1/0433/9354/8444/files/47181663111.pdf
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/nemasiwo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/38315418491.pdf
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/lesejeb.pdf
    • https://cdn.shopify.com/s/files/1/0435/3828/4699/files/read_brisingr_online.pdf
    • https://cdn.shopify.com/s/files/1/0434/6534/3141/files/fusezobitotoluxujukaxo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9024/7829/files/25415941431.pdf
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/58057705268.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000072af.bin
ce477eef2223ebe44be507bbde3bcb0ef3ebd46f8c1e6729748c858368feb551		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72AF 5384 bytes
font_01_sfnt_off000084f4.bin
ef305197bca9c48ddb18edcc2cf89bf5041c439b000bae9bf469b51f9a06dfab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84F4 9912 bytes

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